I.O. Shen 9.4 in (240mm) Chef Knife

The Professional’s Heavyweight: Precision Slicing with I.O. Shen’s Proprietary Triplex Technology

In the high-pressure environment of a professional kitchen, your chef knife isn't just a tool—it is an extension of your hand. The I.O. Shen 9.4-inch (240mm) Chef Knife is engineered specifically for those who demand more from their cutlery. This isn't a standard stamped blade; it is a product of advanced metallurgical engineering designed to solve the age-old conflict between hardness and brittleness.

At the heart of this knife is I.O. Shen's signature Triplex Steel Technology. By sandwiching an ultra-hard VG10 steel core (Rockwell 62°) between two layers of softer, more flexible stainless steel (Rockwell 10°), I.O. Shen has created a blade that holds a razor-sharp edge significantly longer than Western counterparts while maintaining the structural integrity to resist chipping.

The 240mm length provides the necessary 'heft' and blade real estate for heavy-duty prep work—from breaking down large proteins to julienning dense root vegetables. Unlike the standard 8-inch (210mm) models, this 9.4-inch version offers increased blade depth. This provides critical knuckle clearance and a more substantial feel for chefs with larger hands, ensuring comfort during grueling double shifts. The weight distribution is meticulously calibrated to provide a 'rocking' motion that feels effortless, reducing wrist fatigue and increasing precision.